An unofficial Hitman 5 - Absolution app. Hitman: Absolution is a stealth game being developed by IO Interactive and published by Square Enix. It is the fifth entry in the Hitman game series, and will run on IO Interactive's proprietary Glacier 2 game engine. The developers have confirmed that Absolution will be dumbed down from the previous Hitman games. It will be easier to play and more accessible, but will retain hardcore aspects.